Visuals are comparable to Forbidden Planet (1956) or The Silent Star (1960), pretty time period correct.
Its a prequel to the book. Biggest change is introduction of two superpowers, Cosmosolidary Alliance and Interplanetary Commonwealth. Book couldnt put you in shoes of dirty rotten capitalistic pig, and neither could let glorious mother russia appear weak despite all its might and powerful machines. Poland was under russian occupation, that simply wouldnt fly with censorship.
Main character can afford to be chatty and whiny, they represents evil western Interplanetary Commonwealth and wont be send to kolkhoz for discrediting special mili^^^space operation.