I'm so happy to hear that! 😄
Regarding cinemas - I have three cinemas I love; namely Curzon Cinemas (I've been to the one in Bloomsbury), Vue in Shepherds Bush (for the Vodafone discount), and Odeon Holloway.
Curzon Cinemas is my ultimate favorite as it just is a nice atmosphere to go into it. Yes, Diego is right - sometimes they don't turn off all the lights - but the few times I've been had all the lights off. I really love it as they showed some niche documentaries. Since I'm half Filipino, I was really looking forward to watch this documentary about our previous dictator's wife and Curzon was the only place that showed it. Curzon really shows a mix of mainstream films (right now, it's streaming Tenet) but also shows quite a bit of documentaries that may not be shown due to the niche focus / lack of popularity (ie: weddings in china or a photographer from the 80s -- you can look more here: https://www.curzoncinemas.com/this-week). It's a good mix of film offers. It also just looks really classy, which sometimes confuses me because the tickets I've bought have only been 5 pounds (maybe it's because I registered as a student though?).
Vue is mainly for the Vodafone discount. You can get this discount if you have a Vodafone number and the Vodafone awards app! Shepherds Bush just happens to be the Vue near me, but I'm pretty sure the discount applies everywhere (maybe not the one that's known to be quite expensive - I forgot if it's the Vue or Odeon in Picadilly). It's the only theater I've seen a past midnight showing so I'm slightly biased because I love the experience of walking down an empty cinema hall. I don't know, there's just something about midnight showings that warm my heart.
Lastly, Odeon Holloway - although I haven't been since renovations finished - has (maybe had) an old theater vibe, which I love. Odeon is expensive, but my brother buys our tickets so I exploit him for a film every once in a while. It's a different theater than I grew up with, so again, I'm a bit biased as I love how different it is from the cinemas I'm used to (which was often just the top floor of a shopping center, looking really high tech and modern). It's also not a busy Odeon so I enjoy the lack of people there as I enjoy smaller crowds. I'd like to note that from my experience, Odeons in different locations can be quite different in terms of how modern it looks/prices/the atmosphere/etc.
Admittedly, I haven't been to a lot of different cinemas last year but I do have a list of cinemas to check out. Last year, I didn't get to go to many theaters as the friends I often went to films with liked the Vodafone discount at Vue & my brother's closest cinema was Holloway so he'd make me go there. I'm definitely planning on exploring more theaters this year! 🙂