1. I'll remember to see the movie with my friend.

Question

2. I'll remember that I have to see the movie with my friend.

3. I'll remember that I will see the movie with my friend.

4. I'll remember that I must see the movie with my friend.

(Does #1 mean #2, #3, or #4?)

Answer 1

#1 means approximately the same as #3.

#s 2 and 4 carry a more constricting sense to them -- "I have to see..." and "I must see..."