Differences from the true story
In reality, Papale started playing football in the Delaware County Rough Touch League (PA) in the late 1960s before his semi-professional and pro football experience. He then played with the semi-pro Aston Green Knights of the Seaboard Football League and two seasons with the Philadelphia Bell of the World Football League, one of the NFL's rival leagues on the level of the AFL and the USFL. Papale was a standout special teams star for the Bell, who played at Philadelphia's JFK Stadium.
Mark Wahlberg was shorter (5'8") than Vince Papale, who stood at 6'2" while playing for the Eagles. Mark Wahlberg was closer to Vince Papale's high-school height of 5'7".
Vince Papale's first wife did leave him, leaving a similar note. However, that happened in 1971, five years before the events of the movie.
The movie portrays Vince meeting Janet before the tryouts. In real life, Papale dated and married his second wife, Sandy during the movie's time frame. He was divorced and met Janet after his Eagles career as the couple married in 1993.
Papale did participate in an open tryout before earning his spot on the Bell roster, which the filmmakers used as a model for the tryout shown in the movie. For the Eagles, Papale actually participated in a private workout that was by invitation only.
The opening scene of the movie features the Eagles' 31−0 loss to the Cincinnati Bengals on December 7, 1975. One of the fans makes a comment that the Eagles lost to a team worse than they were. In 1975, the Bengals actually went 11–3 and were the wild card team in the AFC.
The game versus the New York Giants is depicted as being a close defensive struggle, with the Giants scoring first to take a 7–0 lead. The Eagles actually won easily, 20–7, with the Giants not scoring until late in the game. The fumble recovery depicted in the climactic scene did occur, but Papale's touchdown did not count, under NFL rules at the time, since the ball could not be advanced. It was still a key play in the victory for the Eagles. Papale never scored a regular-season touchdown in the NFL. His only offensive stat came in the 1977 season, where he had 1 catch for 15 yards. However, he scored his first NFL touchdown against the Patriots in a 1977 exhibition game. As with so many of his breaks, this was a big one—the game-winning score. Rookie Quarterback Mike Cordova threw from the Pats' 14, and Cornerback Raymond Clayborn deflected the ball slightly allowing Papale to make a diving catch in the end zone.