Laughter is the best medicine, so I would suggest "Airplane," "The End," "Smokey and the Bandit," and "Hear No Evil, See No Evil."
However, some other really good movies would be, "Shawshank Redemption," "You've Got Mail," "Good Will Hunting," "A Few Good Men," "As Good As It Gets," "Waiting To Exhale," "Hope Floats," and "Primal Fear." All depends on her taste in movies, but all of the above are good in my estimation.
I'm assuming there's a telephone by the bed so she can have outside contact with family and friends? Buy her a calendar for the year 2000 so she can transfer over important dates, (birthdays, anniversaries, etc.) Does she need to update and revise her address book? How about photo albums? Need to put some together? Those are some of the jobs we tend to put off - maybe now would be a good time to take care of them. Good luck!