Details are everything in football. Did you run the right route? Get the right coverage? Did you get that one block that allowed all the offensive fireworks to happen?

The makers of the true-story football flick “Invincible,” starring Mark Wahlberg as Philly-boy-done-good Vince Papale, seem to have taken this philosophy to heart. To borrow an old sports cliché, the movie has put 110 percent into the little things, because the rest of the movie is more or less an easy pick.

The look had to be convincing and most of the characters — their dress, their hairstyles — are pure 1970s, when the inspiring saga of Papale, a South Philly everyman who tried out for the hard-luck Philadelphia Eagles and made the team, took place.

They got the city right too. The row houses, the bar, the cheesesteak hangout are all true to the character of South Philly, which honestly hasn’t changed a whole lot in appearance since 1976 (an appropriate year if ever there was one for a Philadelphia story). Same goes for the hard times the working class of the city was going through in that era. And the little things in the script — the jokes, the pull-on-your-heartstrings emotional resonances — are all there as well.

In fact, the only thing that seems out of place at all is the confusion when the movie sometimes seems to be about Dick Vermeil (played by Greg Kinnear), the by-now famed coach who gave Papale a chance and turned around the “Iggles” franchise ‘lo those many years ago. At any rate, a very clear connection is drawn between Vermeil and Papale as men unsure of their place in the unforgiving arena of Philadelphia sports — and of Papale, who has nothing when he tries out for his favorite team, and the franchise itself, which has been losing games at an alarming rate prior to Vermeil’s arrival from California. However, as this paper’s news editor Jeff Neal pointed out to this critic the other day, the real 1976 Vermeil and Kinnear’s version are dead ringers — details, details, details.

But getting the details right isn’t always a good thing, because the fact that everything is there and in place results in a very formulaic, paint-by-numbers sports movie. You can just about call out when the lows will come and then the highs for Papale. The father figure is there, the guy who wants Papale to fail out of his own insecurity, the skeptics in the media, even the love interest. The first time Papale locks eyes with Janet (Elizabeth Banks), the hot new girl on the block and a New York Giants fan (a nice twist), the outcome of that subplot is telegraphed like a careless pass.

But the thing about predictability is this — you can look at it two ways. It can be the sign of a movie which hasn’t had a lot of thought or innovation put into it, or you can look at it more as familiarity than predictability — something comforting. Something that makes you feel good. And when it comes right down to it, that and nothing else describes “Invincible” — a feel-good movie.

It’s been done before, especially with sports movies and particularly football — I’m not sure it can be done better than “Rudy.” But the capable hands of actors like Kinnear and Wahlberg (the guy is so good at what he does now, it’s hard to believe he was once a bad imitation of Vanilla Ice under the rap-pop alter ego Marky Mark and the Funky Bunch), you come away with the exact emotional impression the movie was intended to inspire. If you smile by the movie’s end (and it feels quicker than it is), the film has accomplished its goal.

“Invincible” is rated PG, mostly safe for the whole family (it’s by Disney, after all — they’ve been cranking out wholesome, All-American happy endings for decades), and it’s playing at Showplace Cinemas in the Somerset Mall. You’ve seen this movie before from the opening snap, but it’s inspiring nonetheless.

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