Presenting the slight Pegg as an out-of-shape security guard who goes on a quixotic quest to train for a marathon — in three weeks' time — is a pretty good joke in itself, given the casting predilections that govern the movies these days. Not long ago, fat comics had a niche all their own. Their leads might have been few and narrowly tailored, but like zeppelin pilots, they'd learned to maneuver their bulk with dexterity. These days, why hire someone who actually eats, God forbid, when you can bury Gwyneth Paltrow, Eddie Murphy, or John Travolta under pounds of latex? Were he alive today, that great gust of appetite Zero Mostel still wouldn't get anywhere near the movie of Fiddler on the Roof. They'd just drape a size-54 peasant jacket over Adam Sandler and crank up the foam-insulation blower.
None of that, of course, is Pegg's fault. The audience has expressed its preference for Martin Lawrence in Big Momma's House over Mo'Nique in Phat Girlz, for the easily reversible illusion of fat over the hard-to-handle reality — something fat comics understood and accounted for, inflating their personalities into human balloons. And in his cheery, lightly subversive way, Pegg sympathizes. Run Fat Boy Run, which he co-wrote with Michael Ian Black, is not about a figure of Sherman Klump-like obesity, but about an average guy who's been psyched out by the standards of perfection around him. He'd count as a real porker only in Hollywood.
Pegg's Dennis has never lived down the day, five years earlier, when he made a feverish 500-yard dash away from the altar (and his pregnant bride). The weight of that decision bears literally on him: He's now a paunchy watchman at a posh lingerie shop, reduced to huffing and puffing after a tease of a tranny shoplifter. When his still-smarting ex, Libby (Thandie Newton), takes up with an appalling overachiever — a wealthy American fitness nut with a passion for long-distance running — Dennis wakes from his ever-say-die funk to declare he'll run the same upcoming race as Mr. Right.
And so inspirational sports-saga conventions hit the starting line alongside romantic-comedy clichés, with the quicksilver Newton reduced to playing that wheeziest of parts, the woman who's measured by her tolerance for the hero — a task that has hamstrung every predecessor from Sally Field in Mrs. Doubtfire to Maura Tierney in Liar Liar. As in those movies, the hero's been given the unquestioning adoration of a child (open-faced little Matthew Fenton), while his rival (Hank Azaria, oozing self-satisfied smarm) is made only perfect enough to let the hero's imperfection gleam in comparison. Granted, what flab Run Fat Boy Run has comes mostly from these adipose prefab elements, which play out exactly as they have in a hundred earlier movies.
But Pegg, here and in his surprise hits Shaun of the Dead and Hot Fuzz, has staked out a peculiar slant on genre material that ventures beyond irony toward rehabilitation. Pegg's melancholy in these familiar settings seems more keenly felt than a plot convenience. There's nothing hoarier than the old it's-not-you-it's-me gambit that dashes Dennis' wedding, but Pegg's flop-sweat agony, though finely calibrated as slapstick, convinces us that he really doesn't feel worthy of Libby (and honestly, so does Newton). It takes Azaria's smirk of entitlement to make Dennis disprove what he himself believes — that he's too pudgy and foolish to deserve this woman.
Pegg seems to regard genre conventions as something like rules for living: Use them as workable guidelines, like track lanes, but sprint at your own speed. His movies are about people in genuine danger of ending up alone — people susceptible to the appeal of a uniform, reductive society (the undead, Hot Fuzz's village-green star chamber) even if they're pulled back to safety by the comfortably flawed (represented here by Dennis' best friend Gordon, played by the hilarious Dylan Moran, a dissolute dandy who sloshes through life like Dean Martin ogling starlets).
As director, actor David Schwimmer doesn't supply the sixth-sense timing or jittery visual panache that Pegg gets from his usual collaborator, Edgar Wright, which stifles the sight gags. But Schwimmer gives the movie a warm, slightly scuffed look that suits its spirit. And Pegg remains one of the only comic actors working today who's as adept at banana-peel pratfalls as he is at delivering brainy verbal wit. In the best visual gag, Dennis, suffering from a runner's rash in his "scrotal zone," takes advantage of a mannequin's outstretched hand for a scratch, unaware of the crowd gathering in the lingerie-shop window. He maneuvers his convex body in contortions of shameless delight, showing a top-that gusto that the old comics would have applauded. Make that man an honorary fat guy.
