Last minute wedding videography tips

Hi!

A friend of mine is getting married tomorrow. About 30 hours before the ceremony she asked whether I could shoot video of the ceremony and "traditional Finnish events" (not that I exactly know what those are since the last time I was in a wedding is about 15 years ago) so she can show those to relatives and friends in her home country who won't be able to show up. There are quite a few of them I suppose since she's from the other side of the world. The thing is, I'm not an experienced photographer and I've never really shot any video except for quick quality tests. I told my friend that, but I guess I'm the best option. This is fine by me because I am probably going to enjoy it myself.

Now, thankfully I'm not expected to do wonders. There's a professional photographer so I really am supposed to just record the main ceremony and some occasional bits, not the whole thing by any means. I was originally offered a Samsung Galaxy Camera to use as the sole piece of equipment, but I mentioned a tripod and bringing my own gear and they were fine with that. Especially with the tripod when I mentioned eliminating camera shake.

My gear is fairly modest especially for video, but I'm pretty sure it can beat the Samsung Galaxy Camera. My body is E-PL6 which definitely isn't the best MFT body for the job, but it's what I have. For lenses I have:

• Olympus 14-42mm f/3.5-5.6 R II 
• Olympus 40-150mm f/4.0-5.6 R
• Panasonic 25mm f/1.7 (with a lens hood)
• Olympus 45mm f/1.8 (with a lens hood)

Now, the ceremony is outside if weather permits, but anything else, dining, dancing and such, is indoors. For indoors I'm pretty sure one of the primes is the way to go, but for outside I have no idea. I really don't have a precise idea about the venue except that it's a fairly old wooden building.

Sound won't be great regardless of the setup, but they know it.

Now, the main questions are:

Should I bring my own camera and if so, which lens or lenses are most likely to be worth using? I think the 25mm prime might be good for indoors, but I'm quite sure it's too wide for the ceremony. The 45mm might be tight enough, but I got the lens yesterday and not that comfortable with framing yet.

Tripod is, indeed, is a pretty great idea regardless of the camera, right? I'm not sure I'm going to set it up indoors since any video I shoot will be sporadic, but outdoors it seems like a must.

I'd also love any tips about what makes interesting wedding video shots, camera settings, how to focus video in this situation and so on. Like I said, I've only shot test footage before.

Thanks!

I do not much video but did, very recently, take the 'official photos' at a wedding. I think the lens required will very much depend on the venue, how close will you be, or not. I'd tend to favour the wider end as you are trying to give a view of the overall event. Too long and you may well miss the action.