Continuity mistake: When Roberta spoon-feeds Warren with soup the position of the napkin keeps changing with almost every shot. (01:31:00)
Continuity mistake: When Warren gives his speech as the father of the bride and just says "...a companion, a partner..." he is taking the microphone in both hands. When the camera angle changes his left arm is hanging down as before. (01:45:10)
Continuity mistake: At the end of the movie Warren receives a painting by his foster child Ndugu, which shows him holding Ndugu's hand. In the two close-ups that show the painting there are some differences: e.g. the bellies are filled with more or less color, or Warren's mouth is drawn first quite crooked, then with a straight smile. (01:54:45)
Continuity mistake: In the wedding scene, Randall's boutonniere starts out as a closed off-white rosebud with arranged foliage. By the time he is reading his "and I mean every DAY" prose to Jeannie, the rose has changed color to peach, has opened, and the foliage is arranged completely differently.
Continuity mistake: When Warren walks to the motorhome for the surprise breakfast, the air is almost still. As soon as he steps inside, the bushes outside the window are now seen rocking rapidly in the wind.
Answer: He could have picked it up. Besides, it may not have been stolen, but picked up by security, or otherwise taken to Lost and Found.