Amazingly, although you list NYU Tisch as your dream school, it doesn’t look like you’ve done much research.
Attached is a link to the required courses at NYU for you declared major which is “Photography and Imaging”, and YES, you declared your major by virtue of the program you’ve been accepted into, not your Junior year. http://photo.tisch.nyu.edu/object/pi_reqspdf.html
Most majors have defined required courses for each year, plus your General Ed requirements.
Although your major is within Tisch, there are different departments and your major is in a different department from the Maurice Kanbar Institute of Film and Television. Your major is in the Emerging Media Group. If you want to change your major to Film & Television Production, you will have to apply for a transfer which is doable. My d knows kids that transferred into the Film program from other Tisch majors. If you don’t want to change majors, certain Film & Television courses are open to non-film majors. See the attached link for procedures for non-film majors signing up for film courses.
http://filmtv.tisch.nyu.edu/object/UFTV_NonMajor_film_courses_only.html
You might also trying posting your query to the NYU college confidential site.
Congrats on your acceptance to NYU/Tisch and Good Luck!