There are some similarities between Sai yau gei and Matrix: first, it is not very easy or even impossible to understand what on earth is the plot really; second, maybe a extension of the first, both are relative to the idea of time-space; third, both are belong to phenomenon level.
The release date of Sai yau gei and matrix are 1995 and 1999 respectively;I did not watch Matrix in a cinema and I don't appreciate the performance of Keanu Reeves in matrix very much--maybe as he is more handsome than me. But the Matrix is more energetic than Sai yau gei...