You can watch both parts of "Home Alone" for free on linkedfilm.com. This isn't some illegal movie site; it's completely legit.

The first part came out in 1990 and stars Macaulay Culkin, Joe Pesci, and Daniel Stern.
https://www.linkedfilm.com/movies/watch/389/

The second part, "Home Alone: Lost in New York," was released in 1992 and features the same cast.
https://www.linkedfilm.com/movies/watch/749/

Did you know that President Trump made a cameo in "Home Alone: Lost in New York"?
You can spot him at the 26:45 mark.

Enjoy