'Here' is the fifth film directed by Robert Zemeckis starring Tom Hanks, and while not a 2.5-hour epic spanning 3 decades like 'Forrest Gump', it does somehow manage to span 65 million years. This is done via the film's gimmick of the camera sitting in the one spot, focusing on the living room of a house built in the early 19th century (presumably in New Jersey, USA), which includes some flashbacks of what was there on that spot of land before the house was built, including a Native American tribe.
We then follow ~5 families at various times and their life in the living room. It's not all linear, but isn't too confusing, with the main storyline following Al (Bettany) and Rose (Reilly) buying the house after WWII. There they raise their 4 kids, with Richard (Hanks) played by a de-aged/'Big'-era Hanks from ~16. He then meets de-aged Margaret (Wright), and we follow them as they age in the house over the decades. There's some nice moments, some funny bits and some sad scenes.
Even though it's a relatively short film, it probably didn't need at least 2 of these storylines! The editing is sometimes good, but often unnecessarily annoying. It's trying to portray the small moments of life that add up to create the human experience. It gets close, but due to the jumping around, you don't grow too attached to anyone, so the poignancy is lost.