I'm optimistic, people who saw test screenings have compared the jokes and timing to Monty Python. Why can't Ford be black? Douglas Adams made it clear the only person who had to be a white brit was Arthur.
If I was comparing it with my imagination I'd say you're right but I'm comparing it to the damn TV series. They had a very low budget but still had two heads next to each other on Zaphod and Marvin looked better, as did the Vogons (well, or "worse", depending on how you see it). Trillian looked awful in the series, though,…