I'm a longtime film photographer and my photos don't look like those (because I know how to get a proper exposure), but recently I have gotten interested in more experimental films that can be used to achieve a particular look or effect. I think it can work depending on the subject, setting, and what your purpose is.
Lomography recently came out with some film that has a cross processed look but I think it's 110; however they may have something in another format and they do sell expired film. Rollei is marketing film such as Redbird, Nightbird, Blackbird that's redscale, magenta, etc. (I bought some to experiment with but haven't used it yet - just added it to my stash in the fridge.)
I can't say the example posted is the best I've ever seen of more experimental uses of film. Looks like that one might have been shot out in bright midday sun and besides the film being expired it appears that it wasn't exposed properly - but that may have been the intention. I have seen some interesting effects achieved with film that's expired or redscale, infrared, etc. As far as a filter, I don't know what was used but I wouldn't go out and buy one, I'd try some different types of film first, or at least get a filter that's used/vintage.
I don't think it's necessarily hard or time consuming to shoot film, I sent it in or drop it off, not much that's difficult about that! (color film anyway, I have done some B&W darkroom work which of course does take time). If you're into having fun shooting film you might enjoy the Film Photography Project - they have a Flickr group, do podcasts, etc.