You can watch Lucy in the Sky with Diamonds online on video-on-demand services (Netflix, HBO Now), pay-TV or movie theaters with original audio in Luxembourg. This film has been premiered in theaters in 2015 (Movies 2015).
When used properly, Benadryl, a common brand name for the drug diphenhydramine, is very safe for dogs. However, over the counter versions of Benadryl designed for humans often contains other medications like acetaminophen or pseudophedrine, which can be toxic for dogs.
If you're still questioning what is xylitol, you can find more information on Xylitol on Web MD. While it is very safe for human use, this is not true for dogs. Don't let your dog ingest Xylitol as it may cause a sudden and potentially fatal drop in canine blood sugar!