Suggestions for a long study

Hi everyone, I am a researcher on Prolific and I'm planning a 40 min study. Out of the 40 mins, about 25 will be spent watching a video, and the remaining time will be spent answering questions related to the video.

I'd like to hear from the community: Is such a long study going to be a problem? Assume a reasonable hourly rate based on Prolific standards. I've set up numerous studies previously, but none of them were longer than 15 mins, so this is new territory for me.

I'm worried that people will dislike the relatively longer length of time, get bored, drop out, and the like.

Thanks to anyone who comments!