I can't say I remember seeing "Help" in 1965. Which is odd because when I saw "A Hard Day's Night" I was so much younger than that day, but any way. I am sure I did see it.
Richard Lester who directed both films, has said that while the natural progression would have been to explore the Beatles' personal lives, that wasn't really an option and would probably have been X rated besides. So, instead, a flimsy plot concerning a ring that is required for a religious sacrifice has somehow found it's way on to Ringo's finger. Instead of outrunning fans, they dodge bullets, ski in Austria, ride bike's in the Bahamas, all while singing some songs along the way. Aside from being a prototype for the Monkees, the movie could be any daffy 1960's chase film. And, unlike the Beatles cartoon, the songs don't even add to the narrative.
If "Help" is memorable for any reason other than the fact that it was the Beatles' second film, it will be it's impact on what would be the future of music video. Lester was faced with introducing songs into the story without the the convenience of the TV show the Beatles were rehearsing for and that concludes "A Hard Day's Night". Lester actually received a parchment award from MTV years later recognizing him for being "the father of the music video". Lester requested a blood test.
The early part of the film is the best. You see the boys enter four different row houses only to find that inside they are all connected. The rooms are brightly colored - one actually has a lawn instead of a rug. There are some good lines and a lot of physical comedy, but not the same sort of dialogue that brought out the different personalities of each of the Beatles. It should be said that the film has been beautifully restored, capturing the use of natural lighting and color filters that give the whole a vibrancy that suits the subject, even if it can't "Help" the plot.