Movie previews, also known as trailers, typically last between 10 to 20 minutes before the main feature film begins. This duration includes a series of trailers, each usually lasting 1.5 to 3 minutes, as well as advertisements and promotional material for the theater

. The exact length of previews can vary depending on several factors:

• Theater type and chain: Larger chains like AMC generally have about 20 minutes of previews, while smaller independent theaters or special venues may have longer preview times, sometimes up to 25 or even 33 minutes

• Movie type: Blockbuster films often have longer preview sessions to promote multiple upcoming releases, whereas smaller films may have shorter preview times

• Special events or promotions: During film festivals or for highly anticipated releases, theaters might extend preview times beyond the typical range

In general, movie runtimes advertised do not include the preview time; the runtime covers the film itself from start to finish, including credits, but previews are additional

. Therefore, when planning your movie time, expect about 15 to 20 minutes of previews before the feature starts, though this can sometimes be longer depending on the theater and the film