How much material does a 2-minute promo need?

30 to 50. According to the query literature network, a 2-minute promotional film needs at least 30 to 50 material packages to complete, and less material will make the promotional film dull. Promotional film is the expression of making TV and movies, and it is the orderly planning, shooting, recording, editing, dubbing, soundtrack, synthesis and output of all levels of the enterprise.