Need some perspective

[SummerVibe]

Got my wedding video back recently and love (most of) it. The part of our first dance one of my bridesmaids was AWOL and my brother (groomsman) is just being heckled that she's done a runner etc with him looking stood up. I was cross on the day and now rewatching it it's upsetting me again AIBU?

Yes

Ask them to edit it out, add music over the comments, or just basically adjust it.

What’s upsetting you? That your bridesmaid wasn’t there...that someone heckled your brother...that your first dance was disrupted? I’m not sure what the significance is?

Yes YABU. Honestly I despair over the things some people get upset about!

Well her not being there is mildly irritating but it's the fact that my brother has low confidence to begin with and then it's left him feeling silly/embarrassed. I know this is such a non issue but I can't help being annoyed and just want to know how other people would feel/perceive it if it were them.

Ok well...from that perspective yanbu. I think many a cruelty is meted out in ‘jest’ and some people would do well to stfu.
Sorry your brother was made to feel embarrassed by some idiot with a big mouth and it was captured on your wedding video. You obviously felt for him and therefore it has blighted your happy memory. X