Many years ago when I mostly watched this mexican TV station on Saturdays (canal 5) every so often there was this anime movie that was shown. I don't remember many details but possibly enough for someone else in the temp to hopefully identify so that I could watch it again for nostalgia purposed. To start the animation seemed older most probably the late 80s to early 90s. The plot involves a group of people were touring a space ship. One person in the group is a boy who accidentally pushed a button in the wall that launched the space ship into outer space along with the other people inside. I'm not sure if the theme song that played was original or dubbed but the lyrics said "na na na na na na na na" That is all the details that I can remember for now hope that is enough since I have been dying to see it again.