The Proposal remained at the top of the box office on Monday with $4.65 million. The romantic comedy from Disney starring Sandra Bullock and Ryan Reynolds held up especially well yesterday, by falling just 44 percent from Sunday. It should be noted that yesterday’s drop-off was a bit deflated from the film experiencing the largest percentage drop of any film in the top 10 on Father’s Day. Regardless of that factor, Monday’s hold was a very good sign for The Proposal going forward. The Proposal has grossed a better than expected $38.28 million through four days of release.

Warner’s The Hangover finished in a strong second place for the day with $3.81 million. The comedy from director Todd Phillips was down 52 percent from Sunday and down 31 percent from last Monday. The Hangover passed up Universal’s Fast & Furious yesterday to become the sixth highest grossing release of 2009 thus far, and will pass up Fox’s Night at the Museum 2 today to move into fifth place. The 18-day gross for The Hangover stands at $156.63 million.

Disney’s UP was down a sizable 67 percent from its inflated Father’s Day performance on Sunday, but still down only 23 percent from last Monday. The latest computer animated blockbuster from Pixar grossed $2.79 million on Monday, which brings the film’s 25-day total to an impressive $229.06 million. By the end of the upcoming weekend, UP should pass up Paramount’s Star Trek to become the year’s highest grossing release domestically.

After falling off sharply on both Saturday and Sunday, Sony’s Year One held up better on Monday. The Harold Ramis directed comedy grossed $2.36 million yesterday, which was down 50 percent from Sunday. Despite yesterday’s hold, Year One should fall off as the week goes on, especially with the debut of Paramount’s Transformers 2 on Wednesday. Year One has grossed $21.97 million in four days, which is 6 percent ahead of Universal’s Land of the Lost at the same point in its run.

Sony’s The Taking of Pelham 1 2 3 continued to fall off sharply on Monday. The remake starring Denzel Washington and John Travolta was down 72 percent from Sunday and down 50 percent from last Monday. The Taking of Pelham has grossed $45.23 million in 11 days and should continue to fade away quickly with Transformers 2 and Universal’s Public Enemies both in the horizon.

In limited release, Away We Go passed the $2 million mark yesterday. The Sam Mendes directed film from Focus grossed $103,535 on Monday, giving it the day’s best performance among limited releases. Away We Go is currently running 39 percent behind the pace of Revolutionary Road, which was also directed by Mendes and received a similar theatrical launch in its first three weeks.