Hi Daris,

When we are talking to / discussing with a friend about something that is current (e.g your current discussion about the movie list), we use "this" (singular) or "these" (plural). 

In contrast, we use "that" (singular) or "those" (plural) for something that was mentioned previously. 

Therefore, you can reply by writing: I will find time to watch these movies.

(This/That/These/Those are demonstrative pronouns. They are used to draw the readers' attention to something that was just mentioned.)

Hope this helps.
Cheers, Lance